Home / 112,914.07-169,371.18-28,680.55

Finding the Fourth Proportional to 112,914.07, 169,371.18 and 28,680.55

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Solution

The fourth proportional to 112,914.07, 169,371.18 and 28,680.55 is: 43,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,914.07 : 169,371.18 = 28,680.55 : x
  2. Step 2: Convert to fraction form
    112,914.07/169,371.18 = 28,680.55/x
  3. Step 3: Cross multiply
    112,914.07x = 169,371.18 × 28,680.55
  4. Step 4: Simplify right side
    112,914.07x = 4,857,658,596.55
  5. Step 5: Solve for x
    x = 4,857,658,596.55/112,914.07
  6. Step 6: Final answer
    x = 43,020.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.